Cap



FIG. 1 is a side view of a cap showing our new design;

FIG. 2 is a front view thereof.

FIG. 3 is a back view thereof.

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The details shown in broken lines form no part of the claimed design. 

We claim the ornamental design for a cap, as shown and described. 